What is the normal price for them cuz they have some that are kinda on the border line of lines and spots at my lfs. I was considering growing one out for a bigger tank down the road or possibly just for the fun of it.
they go for around $40.00 at this size (9") or so. If the Knife you are questioning is still under 4" you can't tell if its a royal. All Clown knives start with stripes but noraml clowns stripes will start to turn to spots. Thats why they might be "borderline" stripes.